| 一种新型复合木梁的受弯性能研究 |
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| 引用本文： | 杨会峰,刘伟庆.一种新型复合木梁的受弯性能研究[J].建筑结构,2010(1). |
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| 作者姓名： | 杨会峰 刘伟庆 |
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| 作者单位： | 南京工业大学土木工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50578075);;南京工业大学青年教师学术基金2009年度重点项目(39713006) |
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| 摘 要： | 主要研究了杨木旋切板胶合木(LVL)受弯构件的结构性能,建立了受弯构件的计算模型。通过试验,探讨了材料的部分物理力学性能,分析了受弯构件的破坏形态与破坏机理,并将其受弯性能与建筑中常用的锯材构件作了对比分析。试验结果表明,LVL梁的结构性能大大超出了锯材构件,其不仅具有较高的强度与刚度,还具有较低的强度变异性;分析了旋切板厚度与荷载作用方向对构件结构性能的影响;验证了平截面假定。利用极限应变法对构件的弯曲性能进行了理论分析,其结果与试验结果吻合良好。
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| 关 键 词： | 复合木材 旋切板胶合木 梁 受弯性能 试验研究 理论分析 |
Study on flexural behaviour of a novel wood composite beam |
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| Yang Huifeng,Liu Weiqing.Study on flexural behaviour of a novel wood composite beam[J].Building Structure,2010(1). |
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| Authors: | Yang Huifeng Liu Weiqing |
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| Affiliation: | College of Civil Engineering;Nanjing University of Technology;Nanjing 210009;China |
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| Abstract: | The structural behavior of poplar laminated veneer lumber(LVL) beams is reported,and a design model is put forward.Based on the experimental work,some physical and mechanical behaviors of the materials are discussed.And then the failure modes and failure mechanism of the tested beams are analyzed.Also the flexural behaviors are studied and then compared with structural sawn timber beams.The experimental results show that the structural behaviors of LVL beams are much better than those of sawn timber beams.I... |
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| Keywords: | wood composite LVL beam flexural behaviour experimental study theoretical analysis |
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